Blood stored at 4°C lasts safely for about 3 weeks, whereas blood stored at -160°C lasts for 5 years. What is the temperature for the blood that keeps longer using the Kelvin scale? A. 113 K
B. 120 K
C. 100 K
D. 143 K

Please help! 30 points and I will mark brainliest! Thanks!

To protect all four receptacles on a branch circuit that surrounds a swimming pool, you would install which of the following configurations? a. gfci feed-through receptacle at the end of the load's circuit b. gfci-terminated receptacle at the beginning of the load's circuit c. gfci feed-through receptacle at the beginning of the load's circuit and the other receptacles connected to the load side of that receptacle d. gfci-terminated receptacle at each end of the load's circuit

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical